shortcodes fail after the_content filter

@muhammad – Without knowing what the shortcode you are using is, we probably would not be able to discern why it is not parsing the NextGEN Gallery shortcode, as I can easily put a NextGEN Gallery shortcode inside another shortcode that will correctly parse the exact example shortcode you are using.

– Cais.

This will happen for any shortcode that has the the_content applied to the content.

Try adding the following shortcode in your theme:

add_shortcode('shortcode', 'shortcode');
function shortcode($atts, $content = null) {

	$posts = new WP_Query('showposts=10');

	while($posts->have_posts()): $posts->the_post();

	$content = get_the_content();
	$content = apply_filters('the_content', $content);

	var_dump($content);

	endwhile;

}

And then create a new page with the following content:

[shortcode][/shortcode]

<img class="ngg_displayed_gallery mceItem" alt="" src="https://avadatest.theme-fusion.com/nextgen-attach_to_post/preview/id--4687" />

[ngg_images gallery_ids="1" exclusions="" display_type="photocrati-nextgen_basic_thumbnails" thumbnail_width="120" thumbnail_height="90"]

This is actually not a problem directly related to the theme I am using but also happens on Twenty Twelve.

@muhammad – Thanks for that code sample but all variations including the original sample are sending all of my test sites into a 500 Server error.

The exact shortcode you are using would be much better, perhaps a link to a https://gist.github.com/ or https://pastebin.com would work better?

– Cais.

Did you check your PHP error log to find out the issue? It might be a simple missing semi-colon or a copy/paste error at your own end which is causing 500 internal server error.

Shortcode Gist: https://gist.github.com/mharis/140961b7e7e6171cba71
Content to test within the a wordpress page (not page template): https://gist.github.com/mharis/6c5c4d20a46a0ddd6ff2

@muhammad – As I noted, I copied and pasted your exact code, as well as making various modifications and all produced the same results.

– Cais.

Thanks for double checking and all the help.

Please, can you take a look at PHP error log as to why an internal server error shows up? I am not sure why it happens on your test sites as I am unable to replicate the same error locally.

@muhammad – There are no error_log entries from today … actually the last entry was from January 9, 2014.

I did not expect to see the 500 Server error myself as I do not see anything wrong with your example code, but that does not change that it resulted in a 500 Server error all the same ??

I even tried more unique function and shortcode names to no avail.

Again, the actual shortcode code would still be more beneficial to see than this generic example.

– Cais.

Actual shortcode: https://gist.github.com/mharis/f0bc4b86993e996b27d4

Then for the page content to test, you can use the following content:

[recent_posts layout="default" columns="1" number_posts="4" cat_slug="" exclude_cats="" thumbnail="yes" title="yes" meta="yes" excerpt="yes" excerpt_words="35" strip_html="yes" animation_type="0" animation_direction="down" animation_speed="0.1"][/recent_posts]

<img class="ngg_displayed_gallery mceItem" style="line-height: 1.5em;" alt="" src="https://avadatest.theme-fusion.com/nextgen-attach_to_post/preview/id--4687" />

[ngg_images gallery_ids="1" exclusions="" display_type="photocrati-nextgen_basic_thumbnails" thumbnail_width="120" thumbnail_height="90"]

For the gist code, the apply_filters is implemented under tf_content function.

@muhammad – Are you using the Avada theme? We have seen many issues with this particular theme and unfortunately they tend to be all over the place. The only thing I can suggest (at a glance) is to start by turning off the “Fusion Core” plugin (that is how it has been referenced, I have note seen the theme under the page).

This may not be directly related to the issue you brought forward but I see some references in the gist that point to that theme.

Also, that being the case, I think it may be best to bump this over to our Bug Reports (https://www.nextgen-gallery.com/report-bug/ … please reference this topic) so we can get a much better look at what might be going on with your site.

Thanks!

– Cais.

Hi Cais,

I am the developer of Avada theme and yes this is about theme. I do know there are compatibility issues but this is one it where the theme is not to be blamed but the issue can also be replicated on default theme where the_content filter is used.

I’ll file a bug report.

Hi Cais,

I have submitted a bug report through the form that you linked to. Looking forward to get an update from your developers and in the meanwhile, I’ll go ahead and do some other pending work.

Thanks for your help!

I believe this is due to a bug in WordPress, see https://core.trac.www.ads-software.com/ticket/17817

If you create a filter that triggers itself a second time any remaining actions will be ignored for the outter filter flow. The nextgen shortcode filter on the_content is given priority PHP_INT_MAX-1 however, so setting your own priority to PHP_INT_MAX will solve your incompatibility.

Does anyone know if there is a sollution to this problem?
I’ve been struggeling with this for a long time. If I use NGG shortcode together with any other shortcode that uses “the_content” filter, NGG shortcode fails to display the gallery.

Example:
I use “RPS Include Content plugin” to display the content of a post on a page.

Shortcode example:[rps-include post=231 content=content filter=true]

If I omit the “filter=true” attribute, I lose formatting. If I include it, NGG shortcode fails.

Please someone help!